<template>
<div class="login_container">
  <div class="login_box">
    <div class="avater_box">
      <img src="../assets/logo.png" alt="">
    </div>
    <el-form ref="loginFormRef" :model="loginForm" class="login_form" :rules="loginFormRules">
      <el-form-item label="" prop="username" >
        <el-input  prefix-icon="el-icon-user" v-model="loginForm.username"></el-input>
      </el-form-item>
      <el-form-item label="" prop="password">
        <el-input prefix-icon="el-icon-lock"  v-model="loginForm.password" type="password"></el-input>
      </el-form-item>
      <el-form-item class="btns">
        <el-button type="primary" @click="login">登录</el-button>
        <el-button type="info" @click="resetLoginForm">重置</el-button>
      </el-form-item>

    </el-form>
  </div>
</div>
</template>

<script>
export default {
  name: 'Login',
  data() {
      return {
        loginForm: {
          username:'admin',
          password:'123456'
        },
        // 验证规则对象
        loginFormRules:{
          username:[
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '用户名长度在3到10个字符', trigger: 'blur'}
          ],
          password:[
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 15, message: '用户名长度在6到15个字符', trigger: 'blur'}
          ]
        }
      }
    },
  methods:{
    resetLoginForm(){
      this.$refs.loginFormRef.resetFields()
    },
    login(){
      this.$refs.loginFormRef.validate(async (valid)=>{
        if(!valid) return
        const {data:res} = await this.$http.post('login',this.loginForm)
        if(res.meta.status !== 200) return this.$message.error('登录失败');
         this.$message({
          message: '登录成功',
          type: 'success'
        })
        window.sessionStorage.setItem("token",res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 500px;
  height: 350px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);

  .avater_box {
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.btns{
  display: flex;
  justify-content: flex-end;
}
.login_form{
  position: absolute;
  bottom:40px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>
